Systematic analysis of Dendrobium Swartz section Dendrocoryne in the Australian region

Autor:	Peter Adams, Jacinta M. Burke, Sheryl D. Lawson
Rok vydání:	2006
Předmět:	Dendrobium Orchidaceae Species complex Taxon biology Phylogenetic tree Phylogenetics Range (biology) Botany Key (lock) Plant Science biology.organism_classification Ecology Evolution Behavior and Systematics
Zdroj:	Plant Systematics and Evolution. 260:65-80
ISSN:	1615-6110 0378-2697
DOI:	10.1007/s00606-005-0406-5
Popis:	Dendrobium sect. Dendrocoryne is a difficult taxonomic group of allied species and species complexes, occurring on the eastern Australian coastline, Lord Howe Island and New Caledonia. Significant morphological characters were assessed from all key areas of the distribution range. Patterns of variation between species, varieties and hybrids were investigated by principal coordinate analysis. The analyses affirm 12 species in the sect. Dendrocoryne described by Schlechter (1912, 1982) and Dockrill (1969, 1992), including a cluster of small statured D. gracilicaule, D. adae, D. fleckeri, and D. finniganense, and three variable species complexes – D. speciosum, D. kingianum and D. tetragonum. Recently described D. finniganense and D. callitrophilum are interpreted as members of the section. Phylogenetic relationships are presented based on parsimony analysis of 31 morphological characters. Analyses do not support proposals to recognize new genera for D. tetragonum, D. callitrophilum and D. aemulum, or to create new species within D. tetragonum, D. jonesii, D. speciosum and D. kingianum. The phylogeny indicates that rainforest taxa are earlier lineages and xerophytic taxa are more derived.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::143e896ddd90723ed912b3da70844f73 https://doi.org/10.1007/s00606-005-0406-5 Zobrazit plný text záznamu Plný text ve formátu PDF